Thanks for your response. Yes we have _GENSCRN="C:\FPW26\GENSCRNX.PRG" in the CONFIG.FPW. We changed nothing in the screens. We are simply trying to get it to compile the screens like they were before. I just duplicated the problem installing GenScrnX and rebuilding on another machine. I think GenScrnX is using the wrong drivers, but I have no idea what the right ones might be.